Circuit Breakers – Mouser United Kingdom

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5SJ4 Miniature Circuit Breakers

Siemens 5SJ4 Miniature Circuit Breakers come in 1-, 2- or 3-pole versions with 0.3A to 63A rated current. These 70mm mounting depth devices are smaller than traditional molded-case circuit breakers and feature identical wire screw connections on the line and load sides. Siemens 5SJ4 provides DIN rail mounting, an ON and OFF/Trip visible indicator, and EN50274 touch protection.

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Part #

Circuit Breakers MCB 5SJ4 3P 240V 25A 10K D-TRIP

5SJ43258HG41
Siemens
1: £191.35
3In Stock

Mfr. Part No.
5SJ43258HG41

Mouser Part No
982-5SJ43258HG41

Siemens

Circuit Breakers MCB 5SJ4 3P 240V 25A 10K D-TRIP

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Datasheet

3In Stock

£191.35

£166.12

£146.59

£127.04

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

25 A

240 VAC

60 VDC

3 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 30A SAME PH 14K B-TRIP

5SJ41306HG40
Siemens
1: £57.40
3In Stock

Mfr. Part No.
5SJ41306HG40

Mouser Part No
982-5SJ41306HG40

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 30A SAME PH 14K B-TRIP

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Datasheet

3In Stock

£57.40

£49.02

£46.44

£38.70

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

30 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 3P 480/277 13A 10K C-TRIP

5SJ43137HG42
Siemens
1: £191.35
2In Stock

Mfr. Part No.
5SJ43137HG42

Mouser Part No
982-5SJ43137HG42

Siemens

Circuit Breakers MCB 5SJ4 3P 480/277 13A 10K C-TRIP

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Datasheet

2In Stock

£191.35

£166.12

£146.59

£127.04

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

13 A

277 VAC, 480 VAC

60 VDC

3 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 1A 14K D-TRIP

5SJ41018HG41
Siemens
1: £61.97
5In Stock

Mfr. Part No.
5SJ41018HG41

Mouser Part No
982-5SJ41018HG41

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 1A 14K D-TRIP

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Datasheet

5In Stock

£61.97

£53.76

£50.93

£42.45

£39.61

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

1 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 480/277 8A 10K C-TRIP

5SJ42087HG42
Siemens
1: £130.29
1In Stock

Mfr. Part No.
5SJ42087HG42

Mouser Part No
982-5SJ42087HG42

Siemens

Circuit Breakers MCB 5SJ4 2P 480/277 8A 10K C-TRIP

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Datasheet

1In Stock

£130.29

£115.55

£109.13

£89.87

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

8 A

277 VAC, 480 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 3P 240V 45A 10K D-TRIP

5SJ43458HG41
Siemens
1: £194.15
1In Stock

Mfr. Part No.
5SJ43458HG41

Mouser Part No
982-5SJ43458HG41

Siemens

Circuit Breakers MCB 5SJ4 3P 240V 45A 10K D-TRIP

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Datasheet

1In Stock

£194.15

£168.54

£148.73

£128.89

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

45 A

240 VAC

60 VDC

3 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 10A SAME PH 14K C-TRIP

5SJ41107HG40
Siemens
1: £45.51
32In Stock

Mfr. Part No.
5SJ41107HG40

Mouser Part No
982-5SJ41107HG40

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 10A SAME PH 14K C-TRIP

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Datasheet

32In Stock

£45.51

£40.07

£38.18

£33.63

£33.22

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

10 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 240V 4A 14K C-TRIP

5SJ42047HG41
Siemens
1: £130.29
16In Stock

Mfr. Part No.
5SJ42047HG41

Mouser Part No
982-5SJ42047HG41

Siemens

Circuit Breakers MCB 5SJ4 2P 240V 4A 14K C-TRIP

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Datasheet

16In Stock

£130.29

£115.55

£109.13

£89.87

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

4 A

240 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 480/277 6A 10K D-TRIP

5SJ42068HG42
Siemens
1: £130.29
13In Stock

Mfr. Part No.
5SJ42068HG42

Mouser Part No
982-5SJ42068HG42

Siemens

Circuit Breakers MCB 5SJ4 2P 480/277 6A 10K D-TRIP

Learn More

Datasheet

13In Stock

£130.29

£115.55

£109.13

£89.87

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

6 A

277 VAC, 480 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 240V 10A 14K C-TRIP

5SJ42107HG41
Siemens
1: £125.83
45In Stock

Mfr. Part No.
5SJ42107HG41

Mouser Part No
982-5SJ42107HG41

Siemens

Circuit Breakers MCB 5SJ4 2P 240V 10A 14K C-TRIP

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Datasheet

45In Stock

£125.83

£104.32

£96.18

£82.65

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

10 A

240 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 3P 480/277 3A 10K C-TRIP

5SJ43037HG42
Siemens
1: £191.35
12In Stock

Mfr. Part No.
5SJ43037HG42

Mouser Part No
982-5SJ43037HG42

Siemens

Circuit Breakers MCB 5SJ4 3P 480/277 3A 10K C-TRIP

Learn More

Datasheet

12In Stock

£191.35

£166.12

£146.59

£127.04

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

3 A

277 VAC, 480 VAC

60 VDC

3 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 1A 14K C-TRIP

5SJ41017HG41
Siemens
1: £61.97
6In Stock

Mfr. Part No.
5SJ41017HG41

Mouser Part No
982-5SJ41017HG41

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 1A 14K C-TRIP

Learn More

Datasheet

6In Stock

£61.97

£53.76

£50.93

£42.45

£39.61

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

1 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 277V 1A 10K D-TRIP

5SJ41018HG42
Siemens
1: £61.97
1In Stock

Mfr. Part No.
5SJ41018HG42

Mouser Part No
982-5SJ41018HG42

Siemens

Circuit Breakers MCB 5SJ4 1P 277V 1A 10K D-TRIP

Learn More

Datasheet

1In Stock

£61.97

£53.76

£50.93

£42.45

£39.61

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

1 A

277 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 2A SAME PH 14K C-TRIP

5SJ41027HG40
Siemens
1: £53.23
17In Stock

Mfr. Part No.
5SJ41027HG40

Mouser Part No
982-5SJ41027HG40

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 2A SAME PH 14K C-TRIP

Learn More

Datasheet

17In Stock

£53.23

£44.16

£40.73

£33.59

£33.22

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

2 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 2A 14K C-TRIP

5SJ41027HG41
Siemens
1: £53.53
7In Stock

Mfr. Part No.
5SJ41027HG41

Mouser Part No
982-5SJ41027HG41

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 2A 14K C-TRIP

Learn More

Datasheet

7In Stock

£53.53

£45.72

£42.36

£37.22

£36.43

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

2 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 277V 2A 10K C-TRIP

5SJ41027HG42
Siemens
1: £61.97
22In Stock

Mfr. Part No.
5SJ41027HG42

Mouser Part No
982-5SJ41027HG42

Siemens

Circuit Breakers MCB 5SJ4 1P 277V 2A 10K C-TRIP

Learn More

Datasheet

22In Stock

£61.97

£53.76

£50.93

£42.45

£39.61

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

2 A

277 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 3A SAME PH 14K C-TRIP

5SJ41037HG40
Siemens
1: £57.40
12In Stock

Mfr. Part No.
5SJ41037HG40

Mouser Part No
982-5SJ41037HG40

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 3A SAME PH 14K C-TRIP

Learn More

Datasheet

12In Stock

£57.40

£49.02

£46.44

£38.70

View

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

3 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 3A 14K C-TRIP

5SJ41037HG41
Siemens
1: £58.00
5In Stock

Mfr. Part No.
5SJ41037HG41

Mouser Part No
982-5SJ41037HG41

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 3A 14K C-TRIP

Learn More

Datasheet

5In Stock

£58.00

£48.11

£44.08

£36.63

£36.43

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

3 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 4A 14K C-TRIP

5SJ41047HG41
Siemens
1: £57.94
5In Stock

Mfr. Part No.
5SJ41047HG41

Mouser Part No
982-5SJ41047HG41

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 4A 14K C-TRIP

Learn More

Datasheet

5In Stock

£57.94

£48.11

£44.37

£36.43

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

4 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 277V 4A 10K C-TRIP

5SJ41047HG42
Siemens
1: £61.81
7In Stock

Mfr. Part No.
5SJ41047HG42

Mouser Part No
982-5SJ41047HG42

Siemens

Circuit Breakers MCB 5SJ4 1P 277V 4A 10K C-TRIP

Learn More

Datasheet

7In Stock

£61.81

£51.27

£47.28

£38.83

£36.43

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

4 A

277 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 4A SAME PH 14K D-TRIP

5SJ41048HG40
Siemens
1: £57.40
5In Stock

Mfr. Part No.
5SJ41048HG40

Mouser Part No
982-5SJ41048HG40

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 4A SAME PH 14K D-TRIP

Learn More

Datasheet

5In Stock

£57.40

£49.02

£46.44

£38.70

View

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

4 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 6A SAME PH 14K C-TRIP

5SJ41067HG40
Siemens
1: £53.24
11In Stock

Mfr. Part No.
5SJ41067HG40

Mouser Part No
982-5SJ41067HG40

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 6A SAME PH 14K C-TRIP

Learn More

Datasheet

11In Stock

£53.24

£44.16

£40.73

£33.22

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

6 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 6A 14K C-TRIP

5SJ41067HG41
Siemens
1: £51.56
24In Stock

Mfr. Part No.
5SJ41067HG41

Mouser Part No
982-5SJ41067HG41

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 6A 14K C-TRIP

Learn More

Datasheet

24In Stock

£51.56

£45.39

£42.07

£37.07

£36.43

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

6 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 277V 6A 10K C-TRIP

5SJ41067HG42
Siemens
1: £60.15
4In Stock
8Expected 26/06/2026

Mfr. Part No.
5SJ41067HG42

Mouser Part No
982-5SJ41067HG42

Siemens

Circuit Breakers MCB 5SJ4 1P 277V 6A 10K C-TRIP

Learn More

Datasheet

4In Stock

8Expected 26/06/2026

£60.15

£55.12

£50.93

£44.75

View

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

6 A

277 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 277V 6A 10K D-TRIP

5SJ41068HG42
Siemens
1: £61.97
4In Stock

Mfr. Part No.
5SJ41068HG42

Mouser Part No
982-5SJ41068HG42

Siemens

Circuit Breakers MCB 5SJ4 1P 277V 6A 10K D-TRIP

Learn More

Datasheet

4In Stock

£61.97

£53.76

£50.93

£42.45

£39.61

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

6 A

277 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

5SJ4 Miniature Circuit Breakers

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